When you dream flag means: It is a sign of patriotism to see the flag flying in your dreams. It is a sign that you believe you must help your country by waving the flag. Saluting your flag means you love and are proud of the country it represents. Burning your flag is a sign that you oppose your government or country. A white flag, whether it is being waved by you or another person, symbolizes retreat and peace.
(in Dream Dictionary)